Granular performance and team boundaries are both valid points. But, I haven't seen yet (around me) monolith applications so complex to have more teams working

Granular performance and team boundaries are both valid points. But, I haven't seen yet (around me) monolith applications so complex to have more teams working on them. I've seen instead applications developed by two persons where some higher-ups requested splitting them into microservices just because (no, scaling wasn't needed).